The phrase "comes one" can be replaced by several different synonyms depending on the context in which the phrase is used. Depending on the specific meaning to be conveyed, some of these synonyms might include "arrives," "appears," "materializes," or "shows up." In some contexts, "comes one" might also be replaced by "emerges," "enters," "arises," or "approaches." Other possible synonyms for "comes one" might include "proceeds," "moves forward," or "advances." Ultimately, the choice of synonym will depend on the specific context and the intended meaning of the phrase in that particular instance.